I already tried one proofcore hack (Hell Let Loose) and I was very happy with it, so I decided to try out their DayZ cheat.
First of all: you have to verify yourself on the forum, this takes a day but I think it's fast and for our own safety

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There is a detailed description, how to start the cheat, the injection process (time from login to game launch) takes some time (about 2 minutes)...I don't know if other providers are faster.
The cheat itself is nearly self explaining and if you got any questions, there is fast support on discord. Except the "misc" features, I couldn't find any explanation yet

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The functions: Player/Zombie/Item ESP works really good, some loot is for some reasons not shown by the esp (for example stuff spawned on crates in military tents).
Maybe you could consider adding animal esp? There are servers where you can make good money selling animal furs.
Silent Aim: works also perfect, if you try to play more legit, you can uncheck "instant", so the tool misses some shots and hits finally, very good function.
I play with it know for 3 days, no ban/detection yet, I use the tool semi rage (most of the time on modded com servers).
Overall: I recommend proofcore, due to nice support and a great tool

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BTW: I only used DayZ, Standalone Beta Cheat.